./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/twostage_3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a281ae-a9de-4d6e-9516-a7a9ff1bedeb/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a281ae-a9de-4d6e-9516-a7a9ff1bedeb/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a281ae-a9de-4d6e-9516-a7a9ff1bedeb/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a281ae-a9de-4d6e-9516-a7a9ff1bedeb/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/twostage_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a281ae-a9de-4d6e-9516-a7a9ff1bedeb/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a281ae-a9de-4d6e-9516-a7a9ff1bedeb/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9e65812efd79e833978ab1548160841e061a451f72b6ff490ed9b7c0a593a91c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 15:37:36,683 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 15:37:36,686 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 15:37:36,734 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 15:37:36,735 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 15:37:36,736 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 15:37:36,738 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 15:37:36,741 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 15:37:36,743 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 15:37:36,744 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 15:37:36,745 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 15:37:36,747 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 15:37:36,748 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 15:37:36,749 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 15:37:36,750 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 15:37:36,752 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 15:37:36,753 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 15:37:36,755 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 15:37:36,757 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 15:37:36,760 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 15:37:36,762 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 15:37:36,772 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 15:37:36,778 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 15:37:36,779 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 15:37:36,784 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 15:37:36,790 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 15:37:36,791 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 15:37:36,792 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 15:37:36,794 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 15:37:36,796 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 15:37:36,798 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 15:37:36,799 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 15:37:36,801 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 15:37:36,802 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 15:37:36,804 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 15:37:36,805 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 15:37:36,806 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 15:37:36,806 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 15:37:36,806 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 15:37:36,809 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 15:37:36,811 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 15:37:36,812 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a281ae-a9de-4d6e-9516-a7a9ff1bedeb/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-25 15:37:36,851 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 15:37:36,852 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 15:37:36,853 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 15:37:36,853 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 15:37:36,854 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 15:37:36,854 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 15:37:36,855 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 15:37:36,855 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 15:37:36,856 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 15:37:36,856 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 15:37:36,857 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 15:37:36,858 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 15:37:36,858 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 15:37:36,858 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 15:37:36,858 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 15:37:36,859 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 15:37:36,859 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 15:37:36,859 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 15:37:36,859 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-25 15:37:36,859 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 15:37:36,860 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 15:37:36,860 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 15:37:36,860 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 15:37:36,860 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 15:37:36,861 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 15:37:36,861 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 15:37:36,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:37:36,861 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 15:37:36,862 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 15:37:36,862 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 15:37:36,862 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 15:37:36,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 15:37:36,863 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 15:37:36,863 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 15:37:36,863 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 15:37:36,864 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 15:37:36,864 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a281ae-a9de-4d6e-9516-a7a9ff1bedeb/bin/uautomizer-ZsLfNo2U6R/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a281ae-a9de-4d6e-9516-a7a9ff1bedeb/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e65812efd79e833978ab1548160841e061a451f72b6ff490ed9b7c0a593a91c [2022-11-25 15:37:37,152 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 15:37:37,185 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 15:37:37,188 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 15:37:37,190 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 15:37:37,190 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 15:37:37,192 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a281ae-a9de-4d6e-9516-a7a9ff1bedeb/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/pthread/twostage_3.i [2022-11-25 15:37:40,595 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 15:37:40,965 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 15:37:40,965 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a281ae-a9de-4d6e-9516-a7a9ff1bedeb/sv-benchmarks/c/pthread/twostage_3.i [2022-11-25 15:37:40,986 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a281ae-a9de-4d6e-9516-a7a9ff1bedeb/bin/uautomizer-ZsLfNo2U6R/data/2b0a7a8ea/77b239c6092a46498240f176ff35b04b/FLAG61262df23 [2022-11-25 15:37:41,024 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a281ae-a9de-4d6e-9516-a7a9ff1bedeb/bin/uautomizer-ZsLfNo2U6R/data/2b0a7a8ea/77b239c6092a46498240f176ff35b04b [2022-11-25 15:37:41,030 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 15:37:41,033 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 15:37:41,037 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 15:37:41,037 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 15:37:41,042 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 15:37:41,043 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:37:41" (1/1) ... [2022-11-25 15:37:41,044 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7131c911 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:37:41, skipping insertion in model container [2022-11-25 15:37:41,045 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:37:41" (1/1) ... [2022-11-25 15:37:41,055 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 15:37:41,113 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 15:37:41,909 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 15:37:41,911 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a281ae-a9de-4d6e-9516-a7a9ff1bedeb/sv-benchmarks/c/pthread/twostage_3.i[58991,59004] [2022-11-25 15:37:41,914 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 15:37:41,921 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 15:37:41,923 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 15:37:41,928 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 15:37:41,932 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 15:37:41,935 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 15:37:41,937 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 15:37:41,941 WARN L1576 CHandler]: Possible shadowing of function lock [2022-11-25 15:37:41,942 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 15:37:41,943 WARN L1576 CHandler]: Possible shadowing of function lock [2022-11-25 15:37:41,944 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 15:37:41,945 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:37:41,957 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 15:37:42,007 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 15:37:42,008 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a281ae-a9de-4d6e-9516-a7a9ff1bedeb/sv-benchmarks/c/pthread/twostage_3.i[58991,59004] [2022-11-25 15:37:42,010 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 15:37:42,013 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 15:37:42,015 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 15:37:42,020 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 15:37:42,023 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 15:37:42,026 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 15:37:42,029 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 15:37:42,032 WARN L1576 CHandler]: Possible shadowing of function lock [2022-11-25 15:37:42,033 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 15:37:42,034 WARN L1576 CHandler]: Possible shadowing of function lock [2022-11-25 15:37:42,035 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 15:37:42,036 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:37:42,137 INFO L208 MainTranslator]: Completed translation [2022-11-25 15:37:42,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:37:42 WrapperNode [2022-11-25 15:37:42,138 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 15:37:42,140 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 15:37:42,140 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 15:37:42,140 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 15:37:42,181 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:37:42" (1/1) ... [2022-11-25 15:37:42,226 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:37:42" (1/1) ... [2022-11-25 15:37:42,302 INFO L138 Inliner]: procedures = 372, calls = 47, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 237 [2022-11-25 15:37:42,302 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 15:37:42,315 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 15:37:42,315 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 15:37:42,315 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 15:37:42,326 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:37:42" (1/1) ... [2022-11-25 15:37:42,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:37:42" (1/1) ... [2022-11-25 15:37:42,352 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:37:42" (1/1) ... [2022-11-25 15:37:42,353 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:37:42" (1/1) ... [2022-11-25 15:37:42,384 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:37:42" (1/1) ... [2022-11-25 15:37:42,389 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:37:42" (1/1) ... [2022-11-25 15:37:42,405 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:37:42" (1/1) ... [2022-11-25 15:37:42,407 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:37:42" (1/1) ... [2022-11-25 15:37:42,411 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 15:37:42,412 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 15:37:42,412 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 15:37:42,412 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 15:37:42,413 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:37:42" (1/1) ... [2022-11-25 15:37:42,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:37:42,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a281ae-a9de-4d6e-9516-a7a9ff1bedeb/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:37:42,473 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a281ae-a9de-4d6e-9516-a7a9ff1bedeb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 15:37:42,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50a281ae-a9de-4d6e-9516-a7a9ff1bedeb/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 15:37:42,527 INFO L130 BoogieDeclarations]: Found specification of procedure funcA [2022-11-25 15:37:42,527 INFO L138 BoogieDeclarations]: Found implementation of procedure funcA [2022-11-25 15:37:42,527 INFO L130 BoogieDeclarations]: Found specification of procedure funcB [2022-11-25 15:37:42,528 INFO L138 BoogieDeclarations]: Found implementation of procedure funcB [2022-11-25 15:37:42,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 15:37:42,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 15:37:42,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 15:37:42,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 15:37:42,529 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-25 15:37:42,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 15:37:42,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 15:37:42,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 15:37:42,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 15:37:42,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 15:37:42,531 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 15:37:42,698 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 15:37:42,702 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 15:37:43,406 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 15:37:43,420 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 15:37:43,420 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-25 15:37:43,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:37:43 BoogieIcfgContainer [2022-11-25 15:37:43,423 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 15:37:43,426 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 15:37:43,426 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 15:37:43,431 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 15:37:43,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 03:37:41" (1/3) ... [2022-11-25 15:37:43,432 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21a6375a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:37:43, skipping insertion in model container [2022-11-25 15:37:43,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:37:42" (2/3) ... [2022-11-25 15:37:43,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21a6375a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:37:43, skipping insertion in model container [2022-11-25 15:37:43,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:37:43" (3/3) ... [2022-11-25 15:37:43,434 INFO L112 eAbstractionObserver]: Analyzing ICFG twostage_3.i [2022-11-25 15:37:43,445 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 15:37:43,457 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 15:37:43,457 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2022-11-25 15:37:43,458 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 15:37:43,573 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-25 15:37:43,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 328 places, 341 transitions, 704 flow [2022-11-25 15:37:43,973 INFO L130 PetriNetUnfolder]: 39/662 cut-off events. [2022-11-25 15:37:43,973 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-25 15:37:43,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 682 conditions, 662 events. 39/662 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2746 event pairs, 0 based on Foata normal form. 0/556 useless extension candidates. Maximal degree in co-relation 360. Up to 8 conditions per place. [2022-11-25 15:37:43,992 INFO L82 GeneralOperation]: Start removeDead. Operand has 328 places, 341 transitions, 704 flow [2022-11-25 15:37:44,009 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 328 places, 341 transitions, 704 flow [2022-11-25 15:37:44,014 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 15:37:44,050 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 328 places, 341 transitions, 704 flow [2022-11-25 15:37:44,063 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 328 places, 341 transitions, 704 flow [2022-11-25 15:37:44,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 328 places, 341 transitions, 704 flow [2022-11-25 15:37:44,214 INFO L130 PetriNetUnfolder]: 39/662 cut-off events. [2022-11-25 15:37:44,214 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-25 15:37:44,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 682 conditions, 662 events. 39/662 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2746 event pairs, 0 based on Foata normal form. 0/556 useless extension candidates. Maximal degree in co-relation 360. Up to 8 conditions per place. [2022-11-25 15:37:44,237 INFO L119 LiptonReduction]: Number of co-enabled transitions 20182 [2022-11-25 15:38:45,301 WARN L233 SmtUtils]: Spent 34.32s on a formula simplification. DAG size of input: 286 DAG size of output: 282 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 15:39:01,938 WARN L233 SmtUtils]: Spent 16.63s on a formula simplification that was a NOOP. DAG size: 274 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 15:39:30,735 WARN L233 SmtUtils]: Spent 28.79s on a formula simplification. DAG size of input: 302 DAG size of output: 296 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 15:39:44,237 WARN L233 SmtUtils]: Spent 13.50s on a formula simplification that was a NOOP. DAG size: 287 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 15:39:44,361 INFO L134 LiptonReduction]: Checked pairs total: 73687 [2022-11-25 15:39:44,361 INFO L136 LiptonReduction]: Total number of compositions: 436 [2022-11-25 15:39:44,381 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 15:39:44,387 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2d209b41, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 15:39:44,387 INFO L358 AbstractCegarLoop]: Starting to check reachability of 47 error locations. [2022-11-25 15:39:44,389 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-11-25 15:39:44,390 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 15:39:44,390 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:39:44,391 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-11-25 15:39:44,391 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-25 15:39:44,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:39:44,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1255, now seen corresponding path program 1 times [2022-11-25 15:39:44,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:39:44,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825948854] [2022-11-25 15:39:44,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:39:44,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:39:44,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:39:44,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:39:44,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:39:44,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825948854] [2022-11-25 15:39:44,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825948854] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:39:44,553 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:39:44,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-25 15:39:44,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864125692] [2022-11-25 15:39:44,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:39:44,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 15:39:44,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:39:44,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 15:39:44,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 15:39:44,631 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 322 out of 777 [2022-11-25 15:39:44,635 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 81 transitions, 184 flow. Second operand has 2 states, 2 states have (on average 322.5) internal successors, (645), 2 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:39:44,636 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:39:44,636 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 322 of 777 [2022-11-25 15:39:44,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 15:39:45,227 INFO L130 PetriNetUnfolder]: 1664/3297 cut-off events. [2022-11-25 15:39:45,230 INFO L131 PetriNetUnfolder]: For 77/77 co-relation queries the response was YES. [2022-11-25 15:39:45,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6068 conditions, 3297 events. 1664/3297 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 21351 event pairs, 1530 based on Foata normal form. 0/2753 useless extension candidates. Maximal degree in co-relation 5500. Up to 2696 conditions per place. [2022-11-25 15:39:45,254 INFO L137 encePairwiseOnDemand]: 749/777 looper letters, 38 selfloop transitions, 0 changer transitions 0/53 dead transitions. [2022-11-25 15:39:45,255 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 53 transitions, 204 flow [2022-11-25 15:39:45,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 15:39:45,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-25 15:39:45,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 710 transitions. [2022-11-25 15:39:45,283 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4568854568854569 [2022-11-25 15:39:45,284 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 710 transitions. [2022-11-25 15:39:45,291 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 710 transitions. [2022-11-25 15:39:45,296 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 15:39:45,299 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 710 transitions. [2022-11-25 15:39:45,306 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 355.0) internal successors, (710), 2 states have internal predecessors, (710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:39:45,318 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 777.0) internal successors, (2331), 3 states have internal predecessors, (2331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:39:45,320 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 777.0) internal successors, (2331), 3 states have internal predecessors, (2331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:39:45,322 INFO L175 Difference]: Start difference. First operand has 81 places, 81 transitions, 184 flow. Second operand 2 states and 710 transitions. [2022-11-25 15:39:45,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 53 transitions, 204 flow [2022-11-25 15:39:45,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 53 transitions, 204 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 15:39:45,335 INFO L231 Difference]: Finished difference. Result has 54 places, 53 transitions, 128 flow [2022-11-25 15:39:45,338 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=777, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=128, PETRI_PLACES=54, PETRI_TRANSITIONS=53} [2022-11-25 15:39:45,343 INFO L288 CegarLoopForPetriNet]: 81 programPoint places, -27 predicate places. [2022-11-25 15:39:45,343 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 53 transitions, 128 flow [2022-11-25 15:39:45,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 322.5) internal successors, (645), 2 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:39:45,344 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:39:45,344 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2022-11-25 15:39:45,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 15:39:45,345 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 43 more)] === [2022-11-25 15:39:45,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:39:45,359 INFO L85 PathProgramCache]: Analyzing trace with hash -797942068, now seen corresponding path program 1 times [2022-11-25 15:39:45,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:39:45,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490182492] [2022-11-25 15:39:45,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:39:45,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:39:45,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:39:45,547 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 15:39:45,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:39:45,664 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 15:39:45,664 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 15:39:45,666 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (46 of 47 remaining) [2022-11-25 15:39:45,669 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr0ASSERT_VIOLATIONDATA_RACE (45 of 47 remaining) [2022-11-25 15:39:45,669 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr1ASSERT_VIOLATIONDATA_RACE (44 of 47 remaining) [2022-11-25 15:39:45,670 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr2ASSERT_VIOLATIONDATA_RACE (43 of 47 remaining) [2022-11-25 15:39:45,670 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr3ASSERT_VIOLATIONDATA_RACE (42 of 47 remaining) [2022-11-25 15:39:45,670 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr4ASSERT_VIOLATIONDATA_RACE (41 of 47 remaining) [2022-11-25 15:39:45,671 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (40 of 47 remaining) [2022-11-25 15:39:45,671 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (39 of 47 remaining) [2022-11-25 15:39:45,671 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (38 of 47 remaining) [2022-11-25 15:39:45,672 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (37 of 47 remaining) [2022-11-25 15:39:45,672 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (36 of 47 remaining) [2022-11-25 15:39:45,672 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (35 of 47 remaining) [2022-11-25 15:39:45,672 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (34 of 47 remaining) [2022-11-25 15:39:45,673 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (33 of 47 remaining) [2022-11-25 15:39:45,673 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (32 of 47 remaining) [2022-11-25 15:39:45,673 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (31 of 47 remaining) [2022-11-25 15:39:45,674 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (30 of 47 remaining) [2022-11-25 15:39:45,674 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (29 of 47 remaining) [2022-11-25 15:39:45,674 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (28 of 47 remaining) [2022-11-25 15:39:45,675 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (27 of 47 remaining) [2022-11-25 15:39:45,675 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (26 of 47 remaining) [2022-11-25 15:39:45,675 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (25 of 47 remaining) [2022-11-25 15:39:45,676 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (24 of 47 remaining) [2022-11-25 15:39:45,676 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (23 of 47 remaining) [2022-11-25 15:39:45,676 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (22 of 47 remaining) [2022-11-25 15:39:45,677 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (21 of 47 remaining) [2022-11-25 15:39:45,677 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE (20 of 47 remaining) [2022-11-25 15:39:45,677 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 47 remaining) [2022-11-25 15:39:45,679 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr0ASSERT_VIOLATIONDATA_RACE (18 of 47 remaining) [2022-11-25 15:39:45,680 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr1ASSERT_VIOLATIONDATA_RACE (17 of 47 remaining) [2022-11-25 15:39:45,680 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr2ASSERT_VIOLATIONDATA_RACE (16 of 47 remaining) [2022-11-25 15:39:45,682 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr3ASSERT_VIOLATIONDATA_RACE (15 of 47 remaining) [2022-11-25 15:39:45,682 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr4ASSERT_VIOLATIONDATA_RACE (14 of 47 remaining) [2022-11-25 15:39:45,682 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr5ASSERT_VIOLATIONDATA_RACE (13 of 47 remaining) [2022-11-25 15:39:45,683 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr6ASSERT_VIOLATIONDATA_RACE (12 of 47 remaining) [2022-11-25 15:39:45,684 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr0ASSERT_VIOLATIONDATA_RACE (11 of 47 remaining) [2022-11-25 15:39:45,686 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr1ASSERT_VIOLATIONDATA_RACE (10 of 47 remaining) [2022-11-25 15:39:45,686 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr2ASSERT_VIOLATIONDATA_RACE (9 of 47 remaining) [2022-11-25 15:39:45,686 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr3ASSERT_VIOLATIONDATA_RACE (8 of 47 remaining) [2022-11-25 15:39:45,687 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location funcAErr4ASSERT_VIOLATIONDATA_RACE (7 of 47 remaining) [2022-11-25 15:39:45,687 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr0ASSERT_VIOLATIONDATA_RACE (6 of 47 remaining) [2022-11-25 15:39:45,687 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr1ASSERT_VIOLATIONDATA_RACE (5 of 47 remaining) [2022-11-25 15:39:45,688 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr2ASSERT_VIOLATIONDATA_RACE (4 of 47 remaining) [2022-11-25 15:39:45,689 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr3ASSERT_VIOLATIONDATA_RACE (3 of 47 remaining) [2022-11-25 15:39:45,690 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr4ASSERT_VIOLATIONDATA_RACE (2 of 47 remaining) [2022-11-25 15:39:45,692 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr5ASSERT_VIOLATIONDATA_RACE (1 of 47 remaining) [2022-11-25 15:39:45,692 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr6ASSERT_VIOLATIONDATA_RACE (0 of 47 remaining) [2022-11-25 15:39:45,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 15:39:45,693 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-25 15:39:45,698 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-25 15:39:45,700 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-25 15:39:45,769 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2022-11-25 15:39:45,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 405 places, 420 transitions, 888 flow [2022-11-25 15:39:46,390 INFO L130 PetriNetUnfolder]: 155/1973 cut-off events. [2022-11-25 15:39:46,391 INFO L131 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2022-11-25 15:39:46,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2070 conditions, 1973 events. 155/1973 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 12187 event pairs, 1 based on Foata normal form. 0/1654 useless extension candidates. Maximal degree in co-relation 1159. Up to 32 conditions per place. [2022-11-25 15:39:46,409 INFO L82 GeneralOperation]: Start removeDead. Operand has 405 places, 420 transitions, 888 flow [2022-11-25 15:39:46,431 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 405 places, 420 transitions, 888 flow [2022-11-25 15:39:46,431 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 15:39:46,431 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 405 places, 420 transitions, 888 flow [2022-11-25 15:39:46,432 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 405 places, 420 transitions, 888 flow [2022-11-25 15:39:46,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 405 places, 420 transitions, 888 flow [2022-11-25 15:39:46,926 INFO L130 PetriNetUnfolder]: 155/1973 cut-off events. [2022-11-25 15:39:46,927 INFO L131 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2022-11-25 15:39:46,941 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2070 conditions, 1973 events. 155/1973 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 12187 event pairs, 1 based on Foata normal form. 0/1654 useless extension candidates. Maximal degree in co-relation 1159. Up to 32 conditions per place. [2022-11-25 15:39:47,020 INFO L119 LiptonReduction]: Number of co-enabled transitions 52456 [2022-11-25 15:40:32,226 WARN L233 SmtUtils]: Spent 12.62s on a formula simplification. DAG size of input: 286 DAG size of output: 282 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 15:40:37,676 WARN L233 SmtUtils]: Spent 5.45s on a formula simplification that was a NOOP. DAG size: 270 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 15:40:53,462 WARN L233 SmtUtils]: Spent 15.78s on a formula simplification. DAG size of input: 299 DAG size of output: 295 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 15:41:01,668 WARN L233 SmtUtils]: Spent 8.20s on a formula simplification that was a NOOP. DAG size: 283 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 15:41:02,362 INFO L134 LiptonReduction]: Checked pairs total: 299839 [2022-11-25 15:41:02,362 INFO L136 LiptonReduction]: Total number of compositions: 524 [2022-11-25 15:41:02,366 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 15:41:02,367 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2d209b41, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 15:41:02,367 INFO L358 AbstractCegarLoop]: Starting to check reachability of 59 error locations. [2022-11-25 15:41:02,368 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-11-25 15:41:02,369 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 15:41:02,369 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 15:41:02,369 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-11-25 15:41:02,369 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [funcAErr0ASSERT_VIOLATIONDATA_RACE, funcAErr1ASSERT_VIOLATIONDATA_RACE, funcAErr2ASSERT_VIOLATIONDATA_RACE, funcAErr3ASSERT_VIOLATIONDATA_RACE (and 55 more)] === [2022-11-25 15:41:02,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:41:02,370 INFO L85 PathProgramCache]: Analyzing trace with hash 2255, now seen corresponding path program 1 times [2022-11-25 15:41:02,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:41:02,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670882754] [2022-11-25 15:41:02,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:41:02,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:41:02,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:41:02,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:41:02,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:41:02,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670882754] [2022-11-25 15:41:02,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670882754] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:41:02,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:41:02,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-25 15:41:02,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294068172] [2022-11-25 15:41:02,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:41:02,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 15:41:02,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:41:02,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 15:41:02,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 15:41:02,391 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 393 out of 944 [2022-11-25 15:41:02,392 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 129 transitions, 306 flow. Second operand has 2 states, 2 states have (on average 393.5) internal successors, (787), 2 states have internal predecessors, (787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 15:41:02,392 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 15:41:02,393 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 393 of 944 [2022-11-25 15:41:02,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand